| 1 |
The reaction between calcium oxide and carbon dioxide to form calcium carbonate is an example of. |
- A. Decomposition reaction
- B. Addition reaction
- C. Acid-Base reaction
- D. Neutralizaion reaction
|
| 2 |
Th graphical epresentation of tropihic relationship oforaganisms in an ecosystem is called. |
- A. Food Chian
- B. Ecological pyramid
- C. Trophic level
- D. Predation
|
| 3 |
A vehicle designed to carry an artificial satellite in outer space is. |
- A. Rocket
- B. Air bus
- C. Jet Plane
- D. Spacecrapt
|
| 4 |
During respiration by the animals, whihc gas is released into the atmosphere. |
- A. Nitrogen
- B. Oxygen
- C. Carbon Di oxide
- D. Hydrogen
|
| 5 |
Act as instructions to make specific proteins |
- A. Eggs
- B. Gametes
- C. Genes
- D. Protein
|
| 6 |
Energy of ............ is trapped as chemicla energy by producers. |
- A. Moon
- B. Atom
- C. Sun
- D. Earth
|
| 7 |
........ are the functional units of the kidneys. |
- A. Renal cortex
- B. Nephrons
- C. Renal medulla
- D. Renal pyramids
|
| 8 |
............. Controls sensory functions. |
- A. Thalamus
- B. Cerebrum
- C. Hypothalamus
- D. Cerebellum
|
| 9 |
A gene is inserted into a bacterium by. |
- A. Tissue culture
- B. Genetic engineering
- C. Fermentation
- D. Biodegradation
|
| 10 |
A metal |
|